Blog
- Beyond the IMU: Designing a Fault-Tolerant Fall Detection System for Smart Glasses 26 Jun 2026
How I built — and later re-architected — an end-to-end fall detection pipeline for Solos smart glasses combining IMU state machines, a lock-free ring buffer, VLM visual confirmation, and a three-tier photo fallback, eventually replacing an early BLE bandwidth workaround with a proper GATT queue contention fix that cut latency from 16s to under 5s.
- Implementing fake_quantize in OpenVINO's PyTorch Frontend 14 May 2026
How I contributed PR #34577 to OpenVINO (merged Oct 2026) – adding support for the learnable per-channel fake quantize op so QAT-trained models can be converted to OpenVINO IR without import failures.
- Building a Local Multimodal Video RAG System: Python PoC and Memory Bottlenecks 23 Feb 2026
How I built a fully local, privacy-preserving multimodal RAG pipeline for video search using OpenCV, LLaVA, Gemma 2, and Nomic embeddings — and what the GIL taught me about edge AI.
- 如何判断点是否在 Box 中 26 Jul 2025
记录两种在 DistantCount 项目中判断 3D 点是否位于边界框内的方法：向量投影法与坐标系逆变换法。